Now showing items 1-10 of 7636
Spatial and temporal variability in soil CO2-C emissions and relation to soil temperature at King George Island, maritime Antarctica
Few studies have examined the effects of temperature on spatial and temporal trends in soil CO2-C emissions in Antarctica. In this work, we present in situ measurements of CO2-C emissions and assess their relation with ...
Potential use of the veris apparent EC sensor to predict soil texture under the semi-arid conditions of central Arizona
The operational details of the apparent electrical conductivity (ECa) sensor manufactured by Veris Technologies have been extensively documented in literature reports, but the geographical distribution of these research ...
Concentrations of Cu, Fe, Mn, and Zn in tropical soils amended with sewage sludge and composted sewage sludge
Sewage sludge may be used as an agricultural fertilizer, but the practice has been criticized because sludge may contain trace elements and pathogens. The aim of this study was to compare the effectiveness of total and ...
Spatial Variability of Some Soil Physical Properties in Three Soils of Sao Paulo, Brazil.
(Pesquisa Agropecuaria Brasileira, Brasilia, v.27, n.2, p.333-341, fev.1992, 2011)
Alteration of soil properties through a weathering sequence as evaluated by spectral reflectance
In the study of physical, chemical, and mineralogical data related to the weathering of soils and the quantification of their properties, remote sensing constitutes an important technique that, in addition to conventional ...
Short-Term Soil CO2 Emission and Soil Attributes Under Contrasting Sugarcane Cultivars
Agriculture is a great emission source of CO2 into the atmosphere, contributing significantly to the greenhouse effect. Considering the hypothesis that there are differences in soil carbon dynamics due to the distinct ...
Cross-hole and seismic CPT tests in a tropical soil site
A large portion of Brazil is covered with tropical soils but literature about dynamic parameters of these soils is very limited. SCPT and cross-hole tests were carried out at an experimental research site inland in the ...
Carbon Stocks and Isotopic Composition of the Organic Matter in Soils Covered by Native Vegetation and Pasture in Sorocaba, SP, Brazil
(Univ Tehran, 2009-06-01)
Land cover change constitutes one of main way of alteration of soil organic matter in both quantitative and qualitative terms. The goal of this study was to compare the carbon stock and the isotopic signature of the organic ...